diff options
Diffstat (limited to 'third_party/heimdal/lib/gssapi/mech/gss_store_cred_into.c')
| -rw-r--r-- | third_party/heimdal/lib/gssapi/mech/gss_store_cred_into.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/third_party/heimdal/lib/gssapi/mech/gss_store_cred_into.c b/third_party/heimdal/lib/gssapi/mech/gss_store_cred_into.c new file mode 100644 index 0000000..1c739b0 --- /dev/null +++ b/third_party/heimdal/lib/gssapi/mech/gss_store_cred_into.c @@ -0,0 +1,181 @@ +/* + * Copyright (c) 2009 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "mech_locl.h" + +static OM_uint32 +store_mech_cred(OM_uint32 *minor_status, + gssapi_mech_interface m, + const struct _gss_mechanism_cred *mc, + gss_cred_usage_t input_usage, + OM_uint32 store_cred_flags, + gss_const_key_value_set_t cred_store, + gss_cred_usage_t *usage_stored, + gss_buffer_set_t *env) +{ + OM_uint32 major_status; + OM_uint32 overwrite_cred = + !!(store_cred_flags & GSS_C_STORE_CRED_OVERWRITE); + OM_uint32 default_cred = !!(store_cred_flags & GSS_C_STORE_CRED_DEFAULT); + + if (m->gm_store_cred_into2) + major_status = m->gm_store_cred_into2(minor_status, mc->gmc_cred, + input_usage, &m->gm_mech_oid, + store_cred_flags, cred_store, + NULL, usage_stored, + env); + else if (m->gm_store_cred_into) + major_status = m->gm_store_cred_into(minor_status, mc->gmc_cred, + input_usage, &m->gm_mech_oid, + overwrite_cred, default_cred, + cred_store, NULL, usage_stored); + else if (cred_store == GSS_C_NO_CRED_STORE && m->gm_store_cred) + major_status = m->gm_store_cred(minor_status, mc->gmc_cred, + input_usage, &m->gm_mech_oid, + overwrite_cred, default_cred, + NULL, usage_stored); + else + major_status = GSS_S_UNAVAILABLE; + + return major_status; +} + +/* + * See RFC5588 for gss_store_cred(). This function is a variant that takes a + * const key/value hashmap-like thing that specifies a credential store in a + * mechanism- and implementation-specific way, though Heimdal and MIT agree on + * at least the following keys for the Kerberos mechanism: ccache, keytab, and + * client_keytab. A set of environment variables may be output as well + */ +GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL +gss_store_cred_into2(OM_uint32 *minor_status, + gss_const_cred_id_t input_cred_handle, + gss_cred_usage_t input_usage, + const gss_OID desired_mech, + OM_uint32 store_cred_flags, + gss_const_key_value_set_t cred_store, + gss_OID_set *elements_stored, + gss_cred_usage_t *cred_usage_stored, + gss_buffer_set_t *env) +{ + struct _gss_cred *cred = (struct _gss_cred *)input_cred_handle; + struct _gss_mechanism_cred *mc; + OM_uint32 major_status; + OM_uint32 minor; + size_t successes; + + if (env != NULL) + *env = NULL; + + if (input_cred_handle == NULL) + return GSS_S_CALL_INACCESSIBLE_READ; + + if (minor_status == NULL) + return GSS_S_CALL_INACCESSIBLE_WRITE; + *minor_status = 0; + + if (cred_usage_stored) + *cred_usage_stored = 0; + + if (elements_stored) { + *elements_stored = GSS_C_NO_OID_SET; + + major_status = gss_create_empty_oid_set(minor_status, + elements_stored); + if (major_status != GSS_S_COMPLETE) + return major_status; + } + + major_status = GSS_S_NO_CRED; + successes = 0; + + HEIM_TAILQ_FOREACH(mc, &cred->gc_mc, gmc_link) { + gssapi_mech_interface m = mc->gmc_mech; + + if (m == NULL || (m->gm_flags & GM_USE_MG_CRED) != 0) + continue; + + if (desired_mech != GSS_C_NO_OID && + !gss_oid_equal(&m->gm_mech_oid, desired_mech)) + continue; + + major_status = store_mech_cred(minor_status, m, mc, input_usage, + store_cred_flags, cred_store, + cred_usage_stored, env); + if (major_status == GSS_S_COMPLETE) { + if (elements_stored && desired_mech != GSS_C_NO_OID) + gss_add_oid_set_member(&minor, desired_mech, elements_stored); + successes++; + } else if (desired_mech != GSS_C_NO_OID) { + _gss_mg_error(m, *minor_status); + gss_release_oid_set(&minor, elements_stored); + return major_status; + } + } + + if (successes > 0) { + *minor_status = 0; + major_status = GSS_S_COMPLETE; + } + + heim_assert(successes || major_status != GSS_S_COMPLETE, + "cred storage failed, but no error raised"); + + return major_status; +} + +/* + * See RFC5588 for gss_store_cred(). This function is a variant that takes a + * const key/value hashmap-like thing that specifies a credential store in a + * mechanism- and implementation-specific way, though Heimdal and MIT agree on + * at least the following keys for the Kerberos mechanism: ccache, keytab, and + * client_keytab. + */ +GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL +gss_store_cred_into(OM_uint32 *minor_status, + gss_const_cred_id_t input_cred_handle, + gss_cred_usage_t input_usage, + const gss_OID desired_mech, + OM_uint32 overwrite_cred, + OM_uint32 default_cred, + gss_const_key_value_set_t cred_store, + gss_OID_set *elements_stored, + gss_cred_usage_t *cred_usage_stored) +{ + OM_uint32 store_cred_flags = + (overwrite_cred ? GSS_C_STORE_CRED_OVERWRITE : 0) | + (default_cred ? GSS_C_STORE_CRED_DEFAULT : 0); + return gss_store_cred_into2(minor_status, input_cred_handle, input_usage, + desired_mech, store_cred_flags, cred_store, + elements_stored, cred_usage_stored, NULL); +} |